| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Widow Parr | chestnut | f | 1968 | Royal Record | Agin The Law | Thoroughbred | Great Britain | |
| Widow's Peak | bay | f | 1943 | Hairan | Petworth | Thoroughbred | USA | |
| Wiedniu | d.-bay | f | 1989 | Danzig Connection | Nicole Mon Amour | Thoroughbred | USA | |
| Wiener Madel | bay | f | 1911 | William The Third | Danubia | Thoroughbred | Germany | |
| Wiener Wald | chestnut | f | 1992 | Woodman | Chapel of Dreams | Thoroughbred | USA | |
| Wiener Walzer | bay | c | 2006 | Dynaformer | Walzerkoenigin | Thoroughbred | Germany | |
| Wiesenblute | bay | f | 1956 | Neckar | Windstille | Thoroughbred | Germany | |
| Wiesenklee | bay | c | 1961 | Chief | Wiesenblute | Thoroughbred | Germany | |
| Wiesenweihe | bay | f | 1962 | Birkhahn | Wiesenblute | Thoroughbred | Germany | |
| Wife for Life | bay | f | 1994 | Dynaformer | Huggle Duggle | Thoroughbred | USA |